Ricoh Priport DX 4640PD Operating Instructions - Page 155

If you Cannot Make Clear Prints If you Cannot Make Clear Prints Faint Prints If the machine is not used for a long period of time or you change the colour drum unit, the ink on the drum might dry causing print quality to deteriorate. To solve this problem, use Quality Start mode. See p.121 "Quality Start". If the print density is still too light even if you use Quality Start mode, remake the master. Black Lines/Stained Prints Check the exposure glass cover and clean it if dirty. See p.204 "Cleaning the ex- 4 posure glass cover". Check the exposure glass and clean it if dirty. See p.204 "Cleaning the Exposure Glass". Check the sheet of the optional ARDF and clean it if dirty. See p.205 "Cleaning the Auto Document Feeder". Note ❒ If black lines or stains still appear on prints even following the cleaning procedures above, please contact your service representative. 143